Multi-Frequency Antenna Measurement Through IF Signal Combination
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Solution Overview
Problem
Traditional antenna measurement methods face efficiency limitations due to repetitive adjustment of measurement settings, leading to extended measurement times and reduced reliability.
Innovation Solution
A method and system that combines a modulation/demodulation module with an intermediate frequency signal group to efficiently perform measurements at multiple target operating frequencies without significant changes to the measurement settings, using a signal combination module to adjust frequencies and quantity of IF signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional antenna measurement methods are used, then measurement can be performed, but measurement time is significantly extended and measurement reliability is reduced due to repetitive adjustment of settings
Solution Approach 1:
The patent applies preliminary action by pre-configuring the measurement system with a broadband signal generator that can instantly provide signals across multiple frequency bands. The system pre-sets up the necessary measurement parameters and signal paths before actual measurement begins, eliminating the need for repetitive manual adjustments during the measurement process. This allows the system to transition between different frequency measurements without time-consuming reconfiguration.
2Adaptability or versatility
If repetitive adjustment of measurement settings is performed, then measurements at different frequencies can be taken, but measurement consistency is affected due to frequent setting changes
Solution Approach 1:
The patent implements universality by designing a measurement system that can handle multiple frequency bands (e.g., 700 MHz, 850 MHz, 1.9 GHz, 2.1 GHz, 2.6 GHz, and 3.5 GHz) through a single unified platform. The broadband signal generator and measurement apparatus are configured to operate across all these frequencies without requiring separate specialized equipment or frequent recalibration, thereby maintaining measurement consistency while providing versatile frequency coverage.
3Productivity
If traditional measurement methods are used, then single-frequency measurements can be performed, but multi-frequency measurement efficiency is low
Solution Approach 1:
The patent applies parameter changes by utilizing a broadband signal generator that can dynamically adjust its operating parameters to cover multiple frequency bands. Instead of physically reconfiguring the entire measurement system for each frequency, the system changes its operational parameters (frequency, bandwidth, signal characteristics) to adapt to different measurement requirements. This allows efficient multi-frequency measurement while keeping the overall system configuration relatively simple and stable.
Data Source
AI summary
Methods and systems for antenna measurement are provided. The method includes combining a first signal comprising a first local oscillator (LO) signal from a modulation/demodulation module with a first intermediate frequency (IF) signal group from a signal analysis module to generate a second signal. The second signal is provided to an antenna module under test to generate a radio frequency (RF) signal. A receiving antenna module receives the RF signal. An up/down conversion module demodulates the received RF signal by using a second LO signal from a signal generation module to generate a second IF signal group. The signal analysis module processes the second IF signal group to obtain antenna measurement information.